%0 Journal Article %A Yibo Wang %A N. A. Stepanova %T Estimating the amount of sparsity in two-point mixture models %J Zapiski Nauchnykh Seminarov POMI %D 2021 %P 78-101 %V 501 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2021_501_a5/ %G en %F ZNSL_2021_501_a5